dist/zlib/inflate.c

30  * - Add comments on state->bits assertion in inffast.c
137     state->bits = 0;
182     /* set number of window bits, free window if different */
248 int ZEXPORT inflatePrime(strm, bits, value)
250 int bits;
257     if (bits < 0) {
259         state->bits = 0;
262     if (bits > 16 || state->bits + (uInt)bits > 32) return Z_STREAM_ERROR;
263     value &= (1L << bits) - 1;
264     state->hold += (unsigned)value << state->bits;
265     state->bits += (uInt)bits;
289         unsigned sym, bits;
300         bits = 9;
301         inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work);
307         bits = 5;
308         inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work);
364                state.lencode[low].bits, state.lencode[low].val);
374         printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits,
484         bits = state->bits; \
495         state->bits = bits; \
502         bits = 0; \
511         hold += (unsigned long)(*next++) << bits; \
512         bits += 8; \
515 /* Assure that there are at least n bits in the bit accumulator.  If there is
519         while (bits < (unsigned)(n)) \
523 /* Return the low n bits of the bit accumulator (n < 16) */
527 /* Remove n bits from the bit accumulator */
531         bits -= (unsigned)(n); \
534 /* Remove zero to seven bits as needed to go to a byte boundary */
537         hold >>= bits & 7; \
538         bits -= bits & 7; \
561    the requested bits are not available.  The typical use of the BITS macros
569    input left to load n bits into the accumulator, or it continues.  BITS(n)
570    gives the low n bits in the accumulator.  When done, DROPBITS(n) drops
571    the low n bits off the accumulator.  INITBITS() clears the accumulator
572    and sets the number of available bits to zero.  BYTEBITS() discards just
573    enough bits to put the accumulator on a byte boundary.  After BYTEBITS()
632     unsigned bits;              /* bits in bit buffer */
638     unsigned len;               /* length to copy for repeats, bits to drop */
978                     if ((unsigned)(here.bits) <= bits) break;
982                     DROPBITS(here.bits);
987                         NEEDBITS(here.bits + 2);
988                         DROPBITS(here.bits);
999                         NEEDBITS(here.bits + 3);
1000                         DROPBITS(here.bits);
1006                         NEEDBITS(here.bits + 7);
1007                         DROPBITS(here.bits);
1073                 if ((unsigned)(here.bits) <= bits) break;
1080                             (BITS(last.bits + last.op) >> last.bits)];
1081                     if ((unsigned)(last.bits + here.bits) <= bits) break;
1084                 DROPBITS(last.bits);
1085                 state->back += last.bits;
1087             DROPBITS(here.bits);
1088             state->back += here.bits;
1125                 if ((unsigned)(here.bits) <= bits) break;
1132                             (BITS(last.bits + last.op) >> last.bits)];
1133                     if ((unsigned)(last.bits + here.bits) <= bits) break;
1136                 DROPBITS(last.bits);
1137                 state->back += last.bits;
1139             DROPBITS(here.bits);
1140             state->back += here.bits;
1293     strm->data_type = (int)state->bits + (state->last ? 64 : 0) +
1436     if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR;
1441         state->hold <<= state->bits & 7;
1442         state->bits -= state->bits & 7;
1444         while (state->bits >= 8) {
1447             state->bits -= 8;
1489     return state->mode == STORED && state->bits == 0;